1# SPDX-License-Identifier: GPL-2.0 2include ../../../build/Build.include 3include ../../../scripts/Makefile.arch 4include ../../../scripts/Makefile.include 5 6CXX ?= $(CROSS_COMPILE)g++ 7 8CURDIR := $(abspath .) 9TOOLSDIR := $(abspath ../../..) 10LIBDIR := $(TOOLSDIR)/lib 11BPFDIR := $(LIBDIR)/bpf 12TOOLSINCDIR := $(TOOLSDIR)/include 13TOOLSARCHINCDIR := $(TOOLSDIR)/arch/$(SRCARCH)/include 14BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool 15APIDIR := $(TOOLSINCDIR)/uapi 16ifneq ($(O),) 17GENDIR := $(O)/include/generated 18else 19GENDIR := $(abspath ../../../../include/generated) 20endif 21GENHDR := $(GENDIR)/autoconf.h 22PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config 23 24ifneq ($(wildcard $(GENHDR)),) 25 GENFLAGS := -DHAVE_GENHDR 26endif 27 28BPF_GCC ?= $(shell command -v bpf-gcc;) 29SAN_CFLAGS ?= 30SAN_LDFLAGS ?= $(SAN_CFLAGS) 31RELEASE ?= 32OPT_FLAGS ?= $(if $(RELEASE),-O2,-O0) 33 34LIBELF_CFLAGS := $(shell $(PKG_CONFIG) libelf --cflags 2>/dev/null) 35LIBELF_LIBS := $(shell $(PKG_CONFIG) libelf --libs 2>/dev/null || echo -lelf) 36 37ifeq ($(srctree),) 38srctree := $(patsubst %/,%,$(dir $(CURDIR))) 39srctree := $(patsubst %/,%,$(dir $(srctree))) 40srctree := $(patsubst %/,%,$(dir $(srctree))) 41srctree := $(patsubst %/,%,$(dir $(srctree))) 42endif 43 44CFLAGS += -g $(OPT_FLAGS) -rdynamic \ 45 -Wall -Werror -fno-omit-frame-pointer \ 46 $(GENFLAGS) $(SAN_CFLAGS) $(LIBELF_CFLAGS) \ 47 -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR) \ 48 -I$(TOOLSINCDIR) -I$(TOOLSARCHINCDIR) -I$(APIDIR) -I$(OUTPUT) 49LDFLAGS += $(SAN_LDFLAGS) 50LDLIBS += $(LIBELF_LIBS) -lz -lrt -lpthread 51 52PCAP_CFLAGS := $(shell $(PKG_CONFIG) --cflags libpcap 2>/dev/null && echo "-DTRAFFIC_MONITOR=1") 53PCAP_LIBS := $(shell $(PKG_CONFIG) --libs libpcap 2>/dev/null) 54LDLIBS += $(PCAP_LIBS) 55CFLAGS += $(PCAP_CFLAGS) 56 57# The following tests perform type punning and they may break strict 58# aliasing rules, which are exploited by both GCC and clang by default 59# while optimizing. This can lead to broken programs. 60progs/bind4_prog.c-CFLAGS := -fno-strict-aliasing 61progs/bind6_prog.c-CFLAGS := -fno-strict-aliasing 62progs/dynptr_fail.c-CFLAGS := -fno-strict-aliasing 63progs/linked_list_fail.c-CFLAGS := -fno-strict-aliasing 64progs/map_kptr_fail.c-CFLAGS := -fno-strict-aliasing 65progs/syscall.c-CFLAGS := -fno-strict-aliasing 66progs/test_pkt_md_access.c-CFLAGS := -fno-strict-aliasing 67progs/test_sk_lookup.c-CFLAGS := -fno-strict-aliasing 68progs/timer_crash.c-CFLAGS := -fno-strict-aliasing 69progs/test_global_func9.c-CFLAGS := -fno-strict-aliasing 70progs/verifier_nocsr.c-CFLAGS := -fno-strict-aliasing 71 72# Some utility functions use LLVM libraries 73jit_disasm_helpers.c-CFLAGS = $(LLVM_CFLAGS) 74 75ifneq ($(LLVM),) 76# Silence some warnings when compiled with clang 77CFLAGS += -Wno-unused-command-line-argument 78endif 79 80# Check whether bpf cpu=v4 is supported or not by clang 81ifneq ($(shell $(CLANG) --target=bpf -mcpu=help 2>&1 | grep 'v4'),) 82CLANG_CPUV4 := 1 83endif 84 85# Order correspond to 'make run_tests' order 86TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \ 87 test_sock test_sockmap \ 88 test_tcpnotify_user test_sysctl \ 89 test_progs-no_alu32 90TEST_INST_SUBDIRS := no_alu32 91 92# Also test bpf-gcc, if present 93ifneq ($(BPF_GCC),) 94TEST_GEN_PROGS += test_progs-bpf_gcc 95TEST_INST_SUBDIRS += bpf_gcc 96 97# The following tests contain C code that, although technically legal, 98# triggers GCC warnings that cannot be disabled: declaration of 99# anonymous struct types in function parameter lists. 100progs/btf_dump_test_case_bitfields.c-bpf_gcc-CFLAGS := -Wno-error 101progs/btf_dump_test_case_namespacing.c-bpf_gcc-CFLAGS := -Wno-error 102progs/btf_dump_test_case_packing.c-bpf_gcc-CFLAGS := -Wno-error 103progs/btf_dump_test_case_padding.c-bpf_gcc-CFLAGS := -Wno-error 104progs/btf_dump_test_case_syntax.c-bpf_gcc-CFLAGS := -Wno-error 105 106# The following tests do type-punning, via the __imm_insn macro, from 107# `struct bpf_insn' to long and then uses the value. This triggers an 108# "is used uninitialized" warning in GCC due to strict-aliasing 109# rules. 110progs/verifier_ref_tracking.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 111progs/verifier_unpriv.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 112progs/verifier_cgroup_storage.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 113progs/verifier_ld_ind.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 114progs/verifier_map_ret_val.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 115progs/verifier_spill_fill.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 116progs/verifier_subprog_precision.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 117progs/verifier_uninit.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 118endif 119 120ifneq ($(CLANG_CPUV4),) 121TEST_GEN_PROGS += test_progs-cpuv4 122TEST_INST_SUBDIRS += cpuv4 123endif 124 125TEST_GEN_FILES = test_lwt_ip_encap.bpf.o test_tc_edt.bpf.o 126TEST_FILES = xsk_prereqs.sh $(wildcard progs/btf_dump_test_case_*.c) 127 128# Order correspond to 'make run_tests' order 129TEST_PROGS := test_kmod.sh \ 130 test_xdp_redirect.sh \ 131 test_xdp_redirect_multi.sh \ 132 test_xdp_meta.sh \ 133 test_tunnel.sh \ 134 test_lwt_seg6local.sh \ 135 test_lirc_mode2.sh \ 136 test_skb_cgroup_id.sh \ 137 test_flow_dissector.sh \ 138 test_xdp_vlan_mode_generic.sh \ 139 test_xdp_vlan_mode_native.sh \ 140 test_lwt_ip_encap.sh \ 141 test_tcp_check_syncookie.sh \ 142 test_tc_tunnel.sh \ 143 test_tc_edt.sh \ 144 test_xdping.sh \ 145 test_bpftool_build.sh \ 146 test_bpftool.sh \ 147 test_bpftool_metadata.sh \ 148 test_doc_build.sh \ 149 test_xsk.sh \ 150 test_xdp_features.sh 151 152TEST_PROGS_EXTENDED := with_addr.sh \ 153 with_tunnels.sh ima_setup.sh verify_sig_setup.sh \ 154 test_xdp_vlan.sh test_bpftool.py 155 156# Compile but not part of 'make run_tests' 157TEST_GEN_PROGS_EXTENDED = \ 158 flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \ 159 test_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko \ 160 xskxceiver xdp_redirect_multi xdp_synproxy veristat xdp_hw_metadata \ 161 xdp_features bpf_test_no_cfi.ko bpf_test_modorder_x.ko \ 162 bpf_test_modorder_y.ko 163 164TEST_GEN_FILES += liburandom_read.so urandom_read sign-file uprobe_multi 165 166ifneq ($(V),1) 167submake_extras := feature_display=0 168endif 169 170# override lib.mk's default rules 171OVERRIDE_TARGETS := 1 172override define CLEAN 173 $(call msg,CLEAN) 174 $(Q)$(RM) -r $(TEST_GEN_PROGS) 175 $(Q)$(RM) -r $(TEST_GEN_PROGS_EXTENDED) 176 $(Q)$(RM) -r $(TEST_GEN_FILES) 177 $(Q)$(RM) -r $(EXTRA_CLEAN) 178 $(Q)$(MAKE) -C bpf_testmod clean 179 $(Q)$(MAKE) docs-clean 180endef 181 182include ../lib.mk 183 184NON_CHECK_FEAT_TARGETS := clean docs-clean 185CHECK_FEAT := $(filter-out $(NON_CHECK_FEAT_TARGETS),$(or $(MAKECMDGOALS), "none")) 186ifneq ($(CHECK_FEAT),) 187FEATURE_USER := .selftests 188FEATURE_TESTS := llvm 189FEATURE_DISPLAY := $(FEATURE_TESTS) 190 191# Makefile.feature expects OUTPUT to end with a slash 192ifeq ($(shell expr $(MAKE_VERSION) \>= 4.4), 1) 193$(let OUTPUT,$(OUTPUT)/,\ 194 $(eval include ../../../build/Makefile.feature)) 195else 196override OUTPUT := $(OUTPUT)/ 197$(eval include ../../../build/Makefile.feature) 198override OUTPUT := $(patsubst %/,%,$(OUTPUT)) 199endif 200endif 201 202ifeq ($(feature-llvm),1) 203 LLVM_CFLAGS += -DHAVE_LLVM_SUPPORT 204 LLVM_CONFIG_LIB_COMPONENTS := mcdisassembler all-targets 205 # both llvm-config and lib.mk add -D_GNU_SOURCE, which ends up as conflict 206 LLVM_CFLAGS += $(filter-out -D_GNU_SOURCE,$(shell $(LLVM_CONFIG) --cflags)) 207 LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --libs $(LLVM_CONFIG_LIB_COMPONENTS)) 208 LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --system-libs $(LLVM_CONFIG_LIB_COMPONENTS)) 209 LLVM_LDLIBS += -lstdc++ 210 LLVM_LDFLAGS += $(shell $(LLVM_CONFIG) --ldflags) 211endif 212 213SCRATCH_DIR := $(OUTPUT)/tools 214BUILD_DIR := $(SCRATCH_DIR)/build 215INCLUDE_DIR := $(SCRATCH_DIR)/include 216BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a 217ifneq ($(CROSS_COMPILE),) 218HOST_BUILD_DIR := $(BUILD_DIR)/host 219HOST_SCRATCH_DIR := $(OUTPUT)/host-tools 220HOST_INCLUDE_DIR := $(HOST_SCRATCH_DIR)/include 221else 222HOST_BUILD_DIR := $(BUILD_DIR) 223HOST_SCRATCH_DIR := $(SCRATCH_DIR) 224HOST_INCLUDE_DIR := $(INCLUDE_DIR) 225endif 226HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a 227RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids 228RUNQSLOWER_OUTPUT := $(BUILD_DIR)/runqslower/ 229 230VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \ 231 $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \ 232 ../../../../vmlinux \ 233 /sys/kernel/btf/vmlinux \ 234 /boot/vmlinux-$(shell uname -r) 235VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS)))) 236ifeq ($(VMLINUX_BTF),) 237$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)") 238endif 239 240# Define simple and short `make test_progs`, `make test_sysctl`, etc targets 241# to build individual tests. 242# NOTE: Semicolon at the end is critical to override lib.mk's default static 243# rule for binaries. 244$(notdir $(TEST_GEN_PROGS) \ 245 $(TEST_GEN_PROGS_EXTENDED)): %: $(OUTPUT)/% ; 246 247# sort removes libbpf duplicates when not cross-building 248MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf \ 249 $(BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/bpftool \ 250 $(HOST_BUILD_DIR)/resolve_btfids \ 251 $(RUNQSLOWER_OUTPUT) $(INCLUDE_DIR)) 252$(MAKE_DIRS): 253 $(call msg,MKDIR,,$@) 254 $(Q)mkdir -p $@ 255 256$(OUTPUT)/%.o: %.c 257 $(call msg,CC,,$@) 258 $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@ 259 260$(OUTPUT)/%:%.c 261 $(call msg,BINARY,,$@) 262 $(Q)$(LINK.c) $^ $(LDLIBS) -o $@ 263 264# LLVM's ld.lld doesn't support all the architectures, so use it only on x86 265ifeq ($(SRCARCH),$(filter $(SRCARCH),x86 riscv)) 266LLD := lld 267else 268LLD := $(shell command -v $(LD)) 269endif 270 271# Filter out -static for liburandom_read.so and its dependent targets so that static builds 272# do not fail. Static builds leave urandom_read relying on system-wide shared libraries. 273$(OUTPUT)/liburandom_read.so: urandom_read_lib1.c urandom_read_lib2.c liburandom_read.map 274 $(call msg,LIB,,$@) 275 $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \ 276 $(filter-out -static,$(CFLAGS) $(LDFLAGS)) \ 277 $(filter %.c,$^) $(filter-out -static,$(LDLIBS)) \ 278 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 279 -Wl,--version-script=liburandom_read.map \ 280 -fPIC -shared -o $@ 281 282$(OUTPUT)/urandom_read: urandom_read.c urandom_read_aux.c $(OUTPUT)/liburandom_read.so 283 $(call msg,BINARY,,$@) 284 $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \ 285 $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^) \ 286 -lurandom_read $(filter-out -static,$(LDLIBS)) -L$(OUTPUT) \ 287 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 288 -Wl,-rpath=. -o $@ 289 290$(OUTPUT)/sign-file: ../../../../scripts/sign-file.c 291 $(call msg,SIGN-FILE,,$@) 292 $(Q)$(CC) $(shell $(PKG_CONFIG) --cflags libcrypto 2> /dev/null) \ 293 $< -o $@ \ 294 $(shell $(PKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto) 295 296$(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch]) 297 $(call msg,MOD,,$@) 298 $(Q)$(RM) bpf_testmod/bpf_testmod.ko # force re-compilation 299 $(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_testmod 300 $(Q)cp bpf_testmod/bpf_testmod.ko $@ 301 302$(OUTPUT)/bpf_test_no_cfi.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_test_no_cfi/Makefile bpf_test_no_cfi/*.[ch]) 303 $(call msg,MOD,,$@) 304 $(Q)$(RM) bpf_test_no_cfi/bpf_test_no_cfi.ko # force re-compilation 305 $(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_test_no_cfi 306 $(Q)cp bpf_test_no_cfi/bpf_test_no_cfi.ko $@ 307 308$(OUTPUT)/bpf_test_modorder_x.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_test_modorder_x/Makefile bpf_test_modorder_x/*.[ch]) 309 $(call msg,MOD,,$@) 310 $(Q)$(RM) bpf_test_modorder_x/bpf_test_modorder_x.ko # force re-compilation 311 $(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_test_modorder_x 312 $(Q)cp bpf_test_modorder_x/bpf_test_modorder_x.ko $@ 313 314$(OUTPUT)/bpf_test_modorder_y.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_test_modorder_y/Makefile bpf_test_modorder_y/*.[ch]) 315 $(call msg,MOD,,$@) 316 $(Q)$(RM) bpf_test_modorder_y/bpf_test_modorder_y.ko # force re-compilation 317 $(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_test_modorder_y 318 $(Q)cp bpf_test_modorder_y/bpf_test_modorder_y.ko $@ 319 320 321DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool 322ifneq ($(CROSS_COMPILE),) 323CROSS_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool 324TRUNNER_BPFTOOL := $(CROSS_BPFTOOL) 325USE_BOOTSTRAP := "" 326else 327TRUNNER_BPFTOOL := $(DEFAULT_BPFTOOL) 328USE_BOOTSTRAP := "bootstrap/" 329endif 330 331$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL) $(RUNQSLOWER_OUTPUT) 332 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \ 333 OUTPUT=$(RUNQSLOWER_OUTPUT) VMLINUX_BTF=$(VMLINUX_BTF) \ 334 BPFTOOL_OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 335 BPFOBJ_OUTPUT=$(BUILD_DIR)/libbpf/ \ 336 BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) \ 337 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS)' \ 338 EXTRA_LDFLAGS='$(SAN_LDFLAGS)' && \ 339 cp $(RUNQSLOWER_OUTPUT)runqslower $@ 340 341TEST_GEN_PROGS_EXTENDED += $(TRUNNER_BPFTOOL) 342 343$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(BPFOBJ) 344 345TESTING_HELPERS := $(OUTPUT)/testing_helpers.o 346CGROUP_HELPERS := $(OUTPUT)/cgroup_helpers.o 347UNPRIV_HELPERS := $(OUTPUT)/unpriv_helpers.o 348TRACE_HELPERS := $(OUTPUT)/trace_helpers.o 349JSON_WRITER := $(OUTPUT)/json_writer.o 350CAP_HELPERS := $(OUTPUT)/cap_helpers.o 351NETWORK_HELPERS := $(OUTPUT)/network_helpers.o 352 353$(OUTPUT)/test_sock: $(CGROUP_HELPERS) $(TESTING_HELPERS) 354$(OUTPUT)/test_sockmap: $(CGROUP_HELPERS) $(TESTING_HELPERS) 355$(OUTPUT)/test_tcpnotify_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(TRACE_HELPERS) 356$(OUTPUT)/test_sock_fields: $(CGROUP_HELPERS) $(TESTING_HELPERS) 357$(OUTPUT)/test_sysctl: $(CGROUP_HELPERS) $(TESTING_HELPERS) 358$(OUTPUT)/test_tag: $(TESTING_HELPERS) 359$(OUTPUT)/test_lirc_mode2_user: $(TESTING_HELPERS) 360$(OUTPUT)/xdping: $(TESTING_HELPERS) 361$(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS) 362$(OUTPUT)/test_maps: $(TESTING_HELPERS) 363$(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS) $(UNPRIV_HELPERS) 364$(OUTPUT)/xsk.o: $(BPFOBJ) 365$(OUTPUT)/test_tcp_check_syncookie_user: $(NETWORK_HELPERS) 366 367BPFTOOL ?= $(DEFAULT_BPFTOOL) 368$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 369 $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool 370 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 371 ARCH= CROSS_COMPILE= CC="$(HOSTCC)" LD="$(HOSTLD)" \ 372 EXTRA_CFLAGS='-g $(OPT_FLAGS)' \ 373 OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 374 LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 375 LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/ \ 376 prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin 377 378ifneq ($(CROSS_COMPILE),) 379$(CROSS_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 380 $(BPFOBJ) | $(BUILD_DIR)/bpftool 381 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 382 ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) \ 383 EXTRA_CFLAGS='-g $(OPT_FLAGS)' \ 384 OUTPUT=$(BUILD_DIR)/bpftool/ \ 385 LIBBPF_OUTPUT=$(BUILD_DIR)/libbpf/ \ 386 LIBBPF_DESTDIR=$(SCRATCH_DIR)/ \ 387 prefix= DESTDIR=$(SCRATCH_DIR)/ install-bin 388endif 389 390all: docs 391 392docs: 393 $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras) \ 394 -f Makefile.docs \ 395 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 396 397docs-clean: 398 $(Q)$(MAKE) $(submake_extras) \ 399 -f Makefile.docs \ 400 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 401 402$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 403 $(APIDIR)/linux/bpf.h \ 404 | $(BUILD_DIR)/libbpf 405 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \ 406 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS)' \ 407 EXTRA_LDFLAGS='$(SAN_LDFLAGS)' \ 408 DESTDIR=$(SCRATCH_DIR) prefix= all install_headers 409 410ifneq ($(BPFOBJ),$(HOST_BPFOBJ)) 411$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 412 $(APIDIR)/linux/bpf.h \ 413 | $(HOST_BUILD_DIR)/libbpf 414 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \ 415 EXTRA_CFLAGS='-g $(OPT_FLAGS)' ARCH= CROSS_COMPILE= \ 416 OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 417 CC="$(HOSTCC)" LD="$(HOSTLD)" \ 418 DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers 419endif 420 421# vmlinux.h is first dumped to a temprorary file and then compared to 422# the previous version. This helps to avoid unnecessary re-builds of 423# $(TRUNNER_BPF_OBJS) 424$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR) 425ifeq ($(VMLINUX_H),) 426 $(call msg,GEN,,$@) 427 $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $(INCLUDE_DIR)/.vmlinux.h.tmp 428 $(Q)cmp -s $(INCLUDE_DIR)/.vmlinux.h.tmp $@ || mv $(INCLUDE_DIR)/.vmlinux.h.tmp $@ 429else 430 $(call msg,CP,,$@) 431 $(Q)cp "$(VMLINUX_H)" $@ 432endif 433 434$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids \ 435 $(TOOLSDIR)/bpf/resolve_btfids/main.c \ 436 $(TOOLSDIR)/lib/rbtree.c \ 437 $(TOOLSDIR)/lib/zalloc.c \ 438 $(TOOLSDIR)/lib/string.c \ 439 $(TOOLSDIR)/lib/ctype.c \ 440 $(TOOLSDIR)/lib/str_error_r.c 441 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \ 442 CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)" \ 443 LIBBPF_INCLUDE=$(HOST_INCLUDE_DIR) \ 444 OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ) 445 446# Get Clang's default includes on this system, as opposed to those seen by 447# '--target=bpf'. This fixes "missing" files on some architectures/distros, 448# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc. 449# 450# Use '-idirafter': Don't interfere with include mechanics except where the 451# build would have failed anyways. 452define get_sys_includes 453$(shell $(1) $(2) -v -E - </dev/null 2>&1 \ 454 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \ 455$(shell $(1) $(2) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}') \ 456$(shell $(1) $(2) -dM -E - </dev/null | grep '__loongarch_grlen ' | awk '{printf("-D__BITS_PER_LONG=%d", $$3)}') \ 457$(shell $(1) $(2) -dM -E - </dev/null | grep -E 'MIPS(EL|EB)|_MIPS_SZ(PTR|LONG) |_MIPS_SIM |_ABI(O32|N32|64) ' | awk '{printf("-D%s=%s ", $$2, $$3)}') 458endef 459 460# Determine target endianness. 461IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \ 462 grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__') 463MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian) 464 465ifneq ($(CROSS_COMPILE),) 466CLANG_TARGET_ARCH = --target=$(notdir $(CROSS_COMPILE:%-=%)) 467endif 468 469CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH)) 470BPF_CFLAGS = -g -Wall -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \ 471 -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \ 472 -I$(abspath $(OUTPUT)/../usr/include) \ 473 -Wno-compare-distinct-pointer-types 474# TODO: enable me -Wsign-compare 475 476CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) 477 478$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline 479$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline 480 481$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h 482$(OUTPUT)/cgroup_getset_retval_hooks.o: cgroup_getset_retval_hooks.h 483 484# Build BPF object using Clang 485# $1 - input .c file 486# $2 - output .o file 487# $3 - CFLAGS 488# $4 - binary name 489define CLANG_BPF_BUILD_RULE 490 $(call msg,CLNG-BPF,$4,$2) 491 $(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v3 -o $2 492endef 493# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32 494define CLANG_NOALU32_BPF_BUILD_RULE 495 $(call msg,CLNG-BPF,$4,$2) 496 $(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v2 -o $2 497endef 498# Similar to CLANG_BPF_BUILD_RULE, but with cpu-v4 499define CLANG_CPUV4_BPF_BUILD_RULE 500 $(call msg,CLNG-BPF,$4,$2) 501 $(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v4 -o $2 502endef 503# Build BPF object using GCC 504define GCC_BPF_BUILD_RULE 505 $(call msg,GCC-BPF,$4,$2) 506 $(Q)$(BPF_GCC) $3 -DBPF_NO_PRESERVE_ACCESS_INDEX -Wno-attributes -O2 -c $1 -o $2 507endef 508 509SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c 510 511LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \ 512 linked_vars.skel.h linked_maps.skel.h \ 513 test_subskeleton.skel.h test_subskeleton_lib.skel.h \ 514 test_usdt.skel.h 515 516LSKELS := fentry_test.c fexit_test.c fexit_sleep.c atomics.c \ 517 trace_printk.c trace_vprintk.c map_ptr_kern.c \ 518 core_kern.c core_kern_overflow.c test_ringbuf.c \ 519 test_ringbuf_n.c test_ringbuf_map_key.c test_ringbuf_write.c 520 521# Generate both light skeleton and libbpf skeleton for these 522LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test.c \ 523 kfunc_call_test_subprog.c 524SKEL_BLACKLIST += $$(LSKELS) 525 526test_static_linked.skel.h-deps := test_static_linked1.bpf.o test_static_linked2.bpf.o 527linked_funcs.skel.h-deps := linked_funcs1.bpf.o linked_funcs2.bpf.o 528linked_vars.skel.h-deps := linked_vars1.bpf.o linked_vars2.bpf.o 529linked_maps.skel.h-deps := linked_maps1.bpf.o linked_maps2.bpf.o 530# In the subskeleton case, we want the test_subskeleton_lib.subskel.h file 531# but that's created as a side-effect of the skel.h generation. 532test_subskeleton.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o test_subskeleton.bpf.o 533test_subskeleton_lib.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o 534test_usdt.skel.h-deps := test_usdt.bpf.o test_usdt_multispec.bpf.o 535xsk_xdp_progs.skel.h-deps := xsk_xdp_progs.bpf.o 536xdp_hw_metadata.skel.h-deps := xdp_hw_metadata.bpf.o 537xdp_features.skel.h-deps := xdp_features.bpf.o 538 539LINKED_BPF_OBJS := $(foreach skel,$(LINKED_SKELS),$($(skel)-deps)) 540LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.c,$(LINKED_BPF_OBJS)) 541 542HEADERS_FOR_BPF_OBJS := $(wildcard $(BPFDIR)/*.bpf.h) \ 543 $(addprefix $(BPFDIR)/, bpf_core_read.h \ 544 bpf_endian.h \ 545 bpf_helpers.h \ 546 bpf_tracing.h) 547 548# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on 549# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES. 550# Parameters: 551# $1 - test runner base binary name (e.g., test_progs) 552# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) 553define DEFINE_TEST_RUNNER 554 555TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2 556TRUNNER_BINARY := $1$(if $2,-)$2 557TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o, \ 558 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c))) 559TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \ 560 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES))) 561TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES)) 562TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h 563TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c)) 564TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.bpf.o, $$(TRUNNER_BPF_SRCS)) 565TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \ 566 $$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\ 567 $$(TRUNNER_BPF_SRCS))) 568TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS) $$(LSKELS_EXTRA)) 569TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS)) 570TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS) 571 572# Evaluate rules now with extra TRUNNER_XXX variables above already defined 573$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2)) 574 575endef 576 577# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and 578# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with: 579# $1 - test runner base binary name (e.g., test_progs) 580# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) 581define DEFINE_TEST_RUNNER_RULES 582 583ifeq ($($(TRUNNER_OUTPUT)-dir),) 584$(TRUNNER_OUTPUT)-dir := y 585$(TRUNNER_OUTPUT): 586 $$(call msg,MKDIR,,$$@) 587 $(Q)mkdir -p $$@ 588endif 589 590# ensure we set up BPF objects generation rule just once for a given 591# input/output directory combination 592ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),) 593$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y 594$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.bpf.o: \ 595 $(TRUNNER_BPF_PROGS_DIR)/%.c \ 596 $(TRUNNER_BPF_PROGS_DIR)/*.h \ 597 $$(INCLUDE_DIR)/vmlinux.h \ 598 $(HEADERS_FOR_BPF_OBJS) \ 599 | $(TRUNNER_OUTPUT) $$(BPFOBJ) 600 $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \ 601 $(TRUNNER_BPF_CFLAGS) \ 602 $$($$<-CFLAGS) \ 603 $$($$<-$2-CFLAGS),$(TRUNNER_BINARY)) 604 605$(TRUNNER_BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 606 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 607 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$< 608 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o) 609 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o) 610 $(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 611 $(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$@ 612 $(Q)$$(BPFTOOL) gen subskeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$(@:.skel.h=.subskel.h) 613 $(Q)rm -f $$(<:.o=.linked1.o) $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 614 615$(TRUNNER_BPF_LSKELS): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 616 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 617 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$< 618 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o) 619 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o) 620 $(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 621 $(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@ 622 $(Q)rm -f $$(<:.o=.llinked1.o) $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 623 624$(LINKED_BPF_OBJS): %: $(TRUNNER_OUTPUT)/% 625 626# .SECONDEXPANSION here allows to correctly expand %-deps variables as prerequisites 627.SECONDEXPANSION: 628$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_OUTPUT)/%: $$$$(%-deps) $(BPFTOOL) | $(TRUNNER_OUTPUT) 629 $$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.bpf.o)) 630 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps)) 631 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o) 632 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o) 633 $(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 634 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 635 $(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@ 636 $(Q)$$(BPFTOOL) gen subskeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$(@:.skel.h=.subskel.h) 637 $(Q)rm -f $$(@:.skel.h=.linked1.o) $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 638 639# When the compiler generates a %.d file, only skel basenames (not 640# full paths) are specified as prerequisites for corresponding %.o 641# file. This target makes %.skel.h basename dependent on full paths, 642# linking generated %.d dependency with actual %.skel.h files. 643$(notdir %.skel.h): $(TRUNNER_OUTPUT)/%.skel.h 644 @true 645 646endif 647 648# ensure we set up tests.h header generation rule just once 649ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),) 650$(TRUNNER_TESTS_DIR)-tests-hdr := y 651$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c 652 $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@) 653 $$(shell (echo '/* Generated header, do not edit */'; \ 654 sed -n -E 's/^void (serial_)?test_([a-zA-Z0-9_]+)\((void)?\).*/DEFINE_TEST(\2)/p' \ 655 $(TRUNNER_TESTS_DIR)/*.c | sort ; \ 656 ) > $$@) 657endif 658 659# compile individual test files 660# Note: we cd into output directory to ensure embedded BPF object is found 661$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \ 662 $(TRUNNER_TESTS_DIR)/%.c \ 663 | $(TRUNNER_OUTPUT)/%.test.d 664 $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@) 665 $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -MMD -MT $$@ -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F) 666 667$(TRUNNER_TEST_OBJS:.o=.d): $(TRUNNER_OUTPUT)/%.test.d: \ 668 $(TRUNNER_TESTS_DIR)/%.c \ 669 $(TRUNNER_EXTRA_HDRS) \ 670 $(TRUNNER_BPF_SKELS) \ 671 $(TRUNNER_BPF_LSKELS) \ 672 $(TRUNNER_BPF_SKELS_LINKED) \ 673 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 674 675ifeq ($(filter clean docs-clean,$(MAKECMDGOALS)),) 676include $(wildcard $(TRUNNER_TEST_OBJS:.o=.d)) 677endif 678 679# add per extra obj CFGLAGS definitions 680$(foreach N,$(patsubst $(TRUNNER_OUTPUT)/%.o,%,$(TRUNNER_EXTRA_OBJS)), \ 681 $(eval $(TRUNNER_OUTPUT)/$(N).o: CFLAGS += $($(N).c-CFLAGS))) 682 683$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \ 684 %.c \ 685 $(TRUNNER_EXTRA_HDRS) \ 686 $(TRUNNER_TESTS_HDR) \ 687 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 688 $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@) 689 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@ 690 691# non-flavored in-srctree builds receive special treatment, in particular, we 692# do not need to copy extra resources (see e.g. test_btf_dump_case()) 693$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT) 694ifneq ($2:$(OUTPUT),:$(shell pwd)) 695 $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES)) 696 $(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/ 697endif 698 699$(OUTPUT)/$(TRUNNER_BINARY): LDLIBS += $$(LLVM_LDLIBS) 700$(OUTPUT)/$(TRUNNER_BINARY): LDFLAGS += $$(LLVM_LDFLAGS) 701 702# some X.test.o files have runtime dependencies on Y.bpf.o files 703$(OUTPUT)/$(TRUNNER_BINARY): | $(TRUNNER_BPF_OBJS) 704 705$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \ 706 $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \ 707 $(RESOLVE_BTFIDS) \ 708 $(TRUNNER_BPFTOOL) \ 709 | $(TRUNNER_BINARY)-extras 710 $$(call msg,BINARY,,$$@) 711 $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) $$(LDFLAGS) -o $$@ 712 $(Q)$(RESOLVE_BTFIDS) --btf $(TRUNNER_OUTPUT)/btf_data.bpf.o $$@ 713 $(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/$(USE_BOOTSTRAP)bpftool \ 714 $(OUTPUT)/$(if $2,$2/)bpftool 715 716endef 717 718# Define test_progs test runner. 719TRUNNER_TESTS_DIR := prog_tests 720TRUNNER_BPF_PROGS_DIR := progs 721TRUNNER_EXTRA_SOURCES := test_progs.c \ 722 cgroup_helpers.c \ 723 trace_helpers.c \ 724 network_helpers.c \ 725 testing_helpers.c \ 726 btf_helpers.c \ 727 cap_helpers.c \ 728 unpriv_helpers.c \ 729 netlink_helpers.c \ 730 jit_disasm_helpers.c \ 731 test_loader.c \ 732 xsk.c \ 733 disasm.c \ 734 disasm_helpers.c \ 735 json_writer.c \ 736 flow_dissector_load.h \ 737 ip_check_defrag_frags.h 738TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko \ 739 $(OUTPUT)/bpf_test_no_cfi.ko \ 740 $(OUTPUT)/bpf_test_modorder_x.ko \ 741 $(OUTPUT)/bpf_test_modorder_y.ko \ 742 $(OUTPUT)/liburandom_read.so \ 743 $(OUTPUT)/xdp_synproxy \ 744 $(OUTPUT)/sign-file \ 745 $(OUTPUT)/uprobe_multi \ 746 ima_setup.sh \ 747 verify_sig_setup.sh \ 748 $(wildcard progs/btf_dump_test_case_*.c) \ 749 $(wildcard progs/*.bpf.o) 750TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE 751TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 752$(eval $(call DEFINE_TEST_RUNNER,test_progs)) 753 754# Define test_progs-no_alu32 test runner. 755TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE 756TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) 757$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32)) 758 759# Define test_progs-cpuv4 test runner. 760ifneq ($(CLANG_CPUV4),) 761TRUNNER_BPF_BUILD_RULE := CLANG_CPUV4_BPF_BUILD_RULE 762TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 763$(eval $(call DEFINE_TEST_RUNNER,test_progs,cpuv4)) 764endif 765 766# Define test_progs BPF-GCC-flavored test runner. 767ifneq ($(BPF_GCC),) 768TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE 769TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc,) 770$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc)) 771endif 772 773# Define test_maps test runner. 774TRUNNER_TESTS_DIR := map_tests 775TRUNNER_BPF_PROGS_DIR := progs 776TRUNNER_EXTRA_SOURCES := test_maps.c 777TRUNNER_EXTRA_FILES := 778TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built) 779TRUNNER_BPF_CFLAGS := 780$(eval $(call DEFINE_TEST_RUNNER,test_maps)) 781 782# Define test_verifier test runner. 783# It is much simpler than test_maps/test_progs and sufficiently different from 784# them (e.g., test.h is using completely pattern), that it's worth just 785# explicitly defining all the rules explicitly. 786verifier/tests.h: verifier/*.c 787 $(shell ( cd verifier/; \ 788 echo '/* Generated header, do not edit */'; \ 789 echo '#ifdef FILL_ARRAY'; \ 790 ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \ 791 echo '#endif' \ 792 ) > verifier/tests.h) 793$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) 794 $(call msg,BINARY,,$@) 795 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 796 797# Include find_bit.c to compile xskxceiver. 798EXTRA_SRC := $(TOOLSDIR)/lib/find_bit.c 799$(OUTPUT)/xskxceiver: $(EXTRA_SRC) xskxceiver.c xskxceiver.h $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT) 800 $(call msg,BINARY,,$@) 801 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 802 803$(OUTPUT)/xdp_hw_metadata: xdp_hw_metadata.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xdp_hw_metadata.skel.h | $(OUTPUT) 804 $(call msg,BINARY,,$@) 805 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 806 807$(OUTPUT)/xdp_features: xdp_features.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xdp_features.skel.h | $(OUTPUT) 808 $(call msg,BINARY,,$@) 809 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 810 811# Make sure we are able to include and link libbpf against c++. 812$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ) 813 $(call msg,CXX,,$@) 814 $(Q)$(CXX) $(subst -D_GNU_SOURCE=,,$(CFLAGS)) $(filter %.a %.o %.cpp,$^) $(LDLIBS) -o $@ 815 816# Benchmark runner 817$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h $(BPFOBJ) 818 $(call msg,CC,,$@) 819 $(Q)$(CC) $(CFLAGS) -O2 -c $(filter %.c,$^) $(LDLIBS) -o $@ 820$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h 821$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h 822$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \ 823 $(OUTPUT)/perfbuf_bench.skel.h 824$(OUTPUT)/bench_bloom_filter_map.o: $(OUTPUT)/bloom_filter_bench.skel.h 825$(OUTPUT)/bench_bpf_loop.o: $(OUTPUT)/bpf_loop_bench.skel.h 826$(OUTPUT)/bench_strncmp.o: $(OUTPUT)/strncmp_bench.skel.h 827$(OUTPUT)/bench_bpf_hashmap_full_update.o: $(OUTPUT)/bpf_hashmap_full_update_bench.skel.h 828$(OUTPUT)/bench_local_storage.o: $(OUTPUT)/local_storage_bench.skel.h 829$(OUTPUT)/bench_local_storage_rcu_tasks_trace.o: $(OUTPUT)/local_storage_rcu_tasks_trace_bench.skel.h 830$(OUTPUT)/bench_local_storage_create.o: $(OUTPUT)/bench_local_storage_create.skel.h 831$(OUTPUT)/bench_bpf_hashmap_lookup.o: $(OUTPUT)/bpf_hashmap_lookup.skel.h 832$(OUTPUT)/bench_htab_mem.o: $(OUTPUT)/htab_mem_bench.skel.h 833$(OUTPUT)/bench_bpf_crypto.o: $(OUTPUT)/crypto_bench.skel.h 834$(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ) 835$(OUTPUT)/bench: LDLIBS += -lm 836$(OUTPUT)/bench: $(OUTPUT)/bench.o \ 837 $(TESTING_HELPERS) \ 838 $(TRACE_HELPERS) \ 839 $(CGROUP_HELPERS) \ 840 $(OUTPUT)/bench_count.o \ 841 $(OUTPUT)/bench_rename.o \ 842 $(OUTPUT)/bench_trigger.o \ 843 $(OUTPUT)/bench_ringbufs.o \ 844 $(OUTPUT)/bench_bloom_filter_map.o \ 845 $(OUTPUT)/bench_bpf_loop.o \ 846 $(OUTPUT)/bench_strncmp.o \ 847 $(OUTPUT)/bench_bpf_hashmap_full_update.o \ 848 $(OUTPUT)/bench_local_storage.o \ 849 $(OUTPUT)/bench_local_storage_rcu_tasks_trace.o \ 850 $(OUTPUT)/bench_bpf_hashmap_lookup.o \ 851 $(OUTPUT)/bench_local_storage_create.o \ 852 $(OUTPUT)/bench_htab_mem.o \ 853 $(OUTPUT)/bench_bpf_crypto.o \ 854 # 855 $(call msg,BINARY,,$@) 856 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 857 858$(OUTPUT)/veristat.o: $(BPFOBJ) 859$(OUTPUT)/veristat: $(OUTPUT)/veristat.o 860 $(call msg,BINARY,,$@) 861 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 862 863# Linking uprobe_multi can fail due to relocation overflows on mips. 864$(OUTPUT)/uprobe_multi: CFLAGS += $(if $(filter mips, $(ARCH)),-mxgot) 865$(OUTPUT)/uprobe_multi: uprobe_multi.c uprobe_multi.ld 866 $(call msg,BINARY,,$@) 867 $(Q)$(CC) $(CFLAGS) -Wl,-T,uprobe_multi.ld -O0 $(LDFLAGS) \ 868 $(filter-out %.ld,$^) $(LDLIBS) -o $@ 869 870EXTRA_CLEAN := $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \ 871 prog_tests/tests.h map_tests/tests.h verifier/tests.h \ 872 feature bpftool \ 873 $(addprefix $(OUTPUT)/,*.o *.d *.skel.h *.lskel.h *.subskel.h \ 874 no_alu32 cpuv4 bpf_gcc bpf_testmod.ko \ 875 bpf_test_no_cfi.ko \ 876 bpf_test_modorder_x.ko \ 877 bpf_test_modorder_y.ko \ 878 liburandom_read.so) \ 879 $(OUTPUT)/FEATURE-DUMP.selftests 880 881.PHONY: docs docs-clean 882 883# Delete partially updated (corrupted) files on error 884.DELETE_ON_ERROR: 885 886DEFAULT_INSTALL_RULE := $(INSTALL_RULE) 887override define INSTALL_RULE 888 $(DEFAULT_INSTALL_RULE) 889 @for DIR in $(TEST_INST_SUBDIRS); do \ 890 mkdir -p $(INSTALL_PATH)/$$DIR; \ 891 rsync -a $(OUTPUT)/$$DIR/*.bpf.o $(INSTALL_PATH)/$$DIR;\ 892 done 893endef 894